_gitsync

#compdef gitsync
#autoload

function _unique-merge-candidates() {
    comm -13 \
        <(echo $words | tr ' ' '\n' | sed 's|\\~1|~1|g' | sort -u) \
        <(_merge-candidates $reporoot/$(_infer-repo-dir) | sed 's|\\~1|~1|g' | sort -u)
}


function _gs-merge() {
    local candidates 
    candidates=($(_unique-merge-candidates))
    _describe candidates candidates
}

function _gs-checkout() {
    if [ $cur = 2 ]; then
        local candidates 
        candidates=($(_checkout-candidates))
        _describe candidates candidates
    fi
}

function _gs-fetch-or-push() {
    local candidates
    candidates=("--all")
    if [ $cur = 2 ]; then
        _describe candidates candidates
    fi
}

function _gitsync() {
    local cur 
    (( cur = CURRENT - 1 ))
    if [ $cur = 1 ]; then
        _gs_actions=(merge push fetch swap autocommit checkout)
        if { git rev-parse --show-toplevel &>/dev/null }; then
            if { _gitsync-can-mount }; then
                _gs_actions=($_gs_actions "mount")
            fi
            if { _gitsync-can-dissolve }; then
                _gs_actions=($_gs_actions "dissolve")
            fi
            _gs_actions=($_gs_actions fix-inconsistencies)
        else
            _gs_actions=(push fetch)
        fi
        _describe _gs_actions _gs_actions
    elif [ $cur -ge 2 ]; then
        case $words[2] in
            merge)
                _gs-merge
                ;;
            checkout)
                _gs-checkout
                ;;
            push|fetch)
                _gs-fetch-or-push
                ;;
        esac
    fi
}